Dual LDO

® ISL9014A Data Sheet January 30, 2007 FN6438.0 Dual LDO with Low Noise, Low IQ, and High PSRR ISL9014A is a high performance dual LDO capable of sourcing 300mA current from both outputs. The device has a low standby current and high-PSRR and is stable with output capacitance of 1µF to 10µF with ESR of up to 200mΩ. A reference bypass pin allows an external capacitor for adjusting a noise filter for low noise and high PSRR applications. The quiescent current is typically only 45µA with both LDOs enabled and active. Separate enable pins control each individual LDO output. When both enable pins are low, the device is in shutdown, typically drawing less than 0.1µA. Several combinations of voltage outputs are standard. Others are available on request. Output voltage options for each LDO range from 1.2V to 3.6V. Features • Integrates two high performance LDOs - VO1 - 300mA output - VO2 - 300mA output • Excellent transient response to large current steps • Excellent load regulation: <1% voltage change across full range of load current • High PSRR: 70dB @ 1kHz • Wide input voltage capability: 2.3V to 6.5V • Extremely low quiescent current: 45µA (both LDOs active) • Low dropout voltage: typically 200mV @ 300mA • Low output noise: typically 30µVRMS @ 100µA (1.5V) • Stable with 1µF to 10µF ceramic capacitors • Separate enable pins for each LDO • Soft-start to limit input current surge during enable Pinout ISL9014A (10 LD 3x3 DFN) TOP VIEW • Current limit and overheat protection • ±1.8% accuracy over all operating conditions • Tiny 10 Ld 3mmx3mm DFN package VIN EN1 EN2 CBYP NC 1 2 3 4 5 10 VO1 9 8 7 6 VO2 NC NC GND • -40°C to +85°C operating temperature range • Pin compatible with Micrel MIC2211 • Pb-free plus anneal available (RoHS compliant) Applications • PDAs, Cell Phones and Smart Phones • Portable Instruments, MP3 Players • Handheld Devices including Medical Handhelds 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL9014A Ordering Information PART NUMBER (Notes 1, 2, 3) ISL9014AIRNNZ ISL9014AIRNJZ ISL9014AIRNFZ ISL9014AIRNCZ ISL9014AIRMNZ ISL9014AIRMMZ ISL9014AIRMGZ ISL9014AIRLLZ ISL9014AIRKNZ ISL9014AIRKKZ ISL9014AIRKJZ ISL9014AIRKFZ ISL9014AIRKPZ ISL9014AIRKCZ ISL9014AIRJNZ ISL9014AIRJMZ ISL9014AIRJRZ ISL9014AIRJCZ ISL9014AIRJBZ ISL9014AIRGPZ ISL9014AIRGCZ ISL9014AIRFJZ ISL9014AIRFDZ ISL9014AIRFCZ ISL9014AIRPLZ ISL9014AIRPPZ ISL9014AIRCJZ ISL9014AIRCCZ ISL9014AIRBLZ ISL9014AIRBJZ ISL9014AIRBCZ ISL9014AIRBBZ NOTES: 1. Add “-T” to part number for tape and reel. 2. For availability and lead time of devices with voltage combinations not listed in the table, contact Intersil Marketing. 3. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. PART MARKING DKNA DKMA DKLA DKKA DKJA DKHA DKGA DKFA DKDA DKCA DKBA DJYA DKEA DJWA DJTA DJSA DJVA DJRA DJPA DJNA DJMA DJLA DJKA DJJA DKPA DKRA DJHA DJGA DJFA DJEA DJDA DJCA VO1 VOLTAGE 3.3V 3.3V 3.3V 3.3V 3.0V 3.0V 3.0V 2.9V 2.85V 2.85V 2.85V 2.85V 2.85V 2.85V 2.8V 2.8V 2.8V 2.8V 2.8V 2.7V 2.7V 2.5V 2.5V 2.5V 1.85V 1.85V 1.8V 1.8V 1.5V 1.5V 1.5V 1.5V VO2 VOLTAGE 3.3V 2.8V 2.5V 1.8V 3.3V 3.0V 2.7V 2.9V 3.3V 2.85V 2.8V 2.5V 1.85V 1.8V 3.3V 3.0V 2.6V 1.8V 1.5V 1.85V 1.8V 2.8V 2.0V 1.8V 2.9V 1.85V 2.8V 1.8V 2.9V 2.8V 1.8V 1.5V TEMP RANGE (°C) -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 PACKAGE (Pb-Free) 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN 10 Ld 3x3 DFN PKG. DWG. # L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C L10.3x3C 2 FN6438.0 January 30, 2007 ISL9014A Absolute Maximum Ratings Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.1V All Other Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to (VIN+0.3)V Thermal Information Thermal Resistance (Notes 4, 5) θJA (°C/W) θJC (°C/W) 3x3 DFN Package . . . . . . . . . . . . . . . . 50 10 Junction Temperature Range . . . . . . . . . . . . . . . . .-40°C to +125°C Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C Storage Temperature Range . . . . . . . . . . . . . . . . . .-65°C to +150°C Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300°C Recommended Operating Conditions Ambient Temperature Range (TA) . . . . . . . . . . . . . . .-40°C to +85°C Supply Voltage (VIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3V to 6.5V CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTES: 4. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 5. θJC, “case temperature” location is at the center of the exposed metal pad on the package underside. See Tech Brief TB379. Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range of the device as follows: TA = -40°C to +85°C; VIN = (VO + 1.0V) to 6.5V with a minimum VIN of 2.3V; CIN = 1μF; CO = 1μF; CBYP = 0.01μF SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER DC CHARACTERISTICS Supply Voltage Ground Current VIN Quiescent condition: IO1 = 0μA; IO2 = 0μA IDD1 IDD2 One LDO active Both LDO active @ +25°C 2.3 6.5 V 25 45 0.1 1.9 1.6 2.1 1.8 40 60 1.0 2.3 2.0 +1.8 μA μA μA V V % %/V % % mA mA Shutdown Current UVLO Threshold IDDS VUV+ VUV- Regulation Voltage Accuracy Line Regulation Load Regulation Variation from nominal voltage output, VIN = VO +0.5V to 5.5V, TJ = -40°C to +125°C VIN = (VOUT + 1.0V relative to highest output voltage) to 5.5V IOUT = 100μA to 150mA IOUT = 100μA to 300mA -1.8 -0.2 0 0.1 0.2 0.7 1.0 Maximum Output Current IMAX VO1: Continuous VO2: Continuous 300 300 350 475 125 300 250 200 145 110 600 200 500 400 325 Internal Current Limit Dropout Voltage (Note 6) ILIM VDO1 VDO2 VDO3 VDO4 IO = 150mA; VO > 2.1V IO = 300mA; VO < 2.5V IO = 300mA; 2.5V ≤ VO ≤ 2.8V IO = 300mA; VO > 2.8V mA mV mV mV mV °C °C Thermal Shutdown Temperature TSD+ TSD- AC CHARACTERISTICS Ripple Rejection IO = 10mA, VIN = 2.8V(min), VO = 1.8V, CBYP = 0.1μF @ 1kHz @ 10kHz @ 100kHz Output Noise Voltage IO = 100μA, VO = 1.5V, TA = +25°C, CBYP = 0.1μF BW = 10Hz to 100kHz 70 55 40 30 dB dB dB μVRMS 3 FN6438.0 January 30, 2007 ISL9014A Electrical Specifications Unless otherwise noted, all parameters are guaranteed over the operational supply voltage and temperature range of the device as follows: TA = -40°C to +85°C; VIN = (VO + 1.0V) to 6.5V with a minimum VIN of 2.3V; CIN = 1μF; CO = 1μF; CBYP = 0.01μF (Continued) SYMBOL TEST CONDITIONS MIN TYP MAX UNITS PARAMETER DEVICE START-UP CHARACTERISTICS Device Enable TIme LDO Soft-Start Ramp Rate EN1, EN2 PIN CHARACTERISTICS Input Low Voltage Input High Voltage Input Leakage Current Pin Capacitance NOTES: 6. VOx = 0.98 * VOx(NOM); Valid for VOx greater than 1.85V. VIL VIH IIL, IIH CPIN Informative 5 -0.3 1.4 0.5 VIN + 0.3 0.1 V V μA pF tEN tSSR Time from assertion of the ENx pin to when the output voltage reaches 95% of the VO(nom) Slope of linear portion of LDO output voltage ramp during start-up 250 30 500 60 μs μs/V 4 FN6438.0 January 30, 2007 ISL9014A Typical Performance Curves 0.8 0.6 OUTPUT VOLTAGE, VO (%) 0.4 0.2 -40°C 0.0 +25°C -0.2 -0.4 -0.6 -0.8 3.4 3.8 4.2 4.6 5.0 5.4 5.8 6.2 6.6 INPUT VOLTAGE (V) +85°C VO = 3.3V ILOAD = 0mA OUTPUT VOLTAGE CHANGE (%) 0.10 0.08 0.06 0.04 0.02 0.00 -0.02 +85°C -0.04 -0.06 -0.08 -0.10 0 50 100 150 200 250 300 350 400 +25°C -40°C VIN = 3.8V VO = 3.3V LOAD CURRENT - IO (mA) FIGURE 1. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) 0.10 0.08 OUTPUT VOLTAGE CHANGE (%) 0.06 0.04 0.02 0.00 -0.02 -0.04 -0.06 -0.08 -0.10 -40 VIN = 3.8V VO = 3.3V ILOAD = 0mA FIGURE 2. OUTPUT VOLTAGE CHANGE vs LOAD CURRENT 3.4 IO = 0mA VO = 3.3V 3.3 OUTPUT VOLTAGE, VO (V) 3.2 IO = 150mA 3.1 IO = 300mA 3.0 2.9 2.8 -25 -10 5 20 50 35 65 TEMPERATURE (°C) 80 95 110 125 3.1 3.6 4.1 4.6 5.1 5.6 6.1 6.5 INPUT VOLTAGE (V) FIGURE 3. OUTPUT VOLTAGE CHANGE vs TEMPERATURE FIGURE 4. OUTPUT VOLTAGE vs INPUT VOLTAGE (3.3V OUTPUT) 350 2.9 IO = 0mA 2.8 OUTPUT VOLTAGE, VO (V) VO2 = 2.8V 300 DROPOUT VOLTAGE, VDO (mV) 250 VO = 2